When setting up a gaming station in a tight room, aim for a desk about 100 to...

https://weekly-wiki.win/index.php/How_to_Plan_a_Gaming_Setup_Around_the_Gear_You_Already_Own

When setting up a gaming station in a tight room, aim for a desk about 100 to 120 centimetres wide to fit your gear comfortably. Use a monitor arm to free up surface space, and leave at least 75 centimetres of chair clearance behind to move freely